694 lines
27 KiB
C++
694 lines
27 KiB
C++
// Copyright (c) Microsoft Corporation.
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// Licensed under the MIT license.
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#include "pch.h"
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#include "Command.h"
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#include "Command.g.cpp"
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#include "ActionAndArgs.h"
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#include "KeyChordSerialization.h"
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#include <LibraryResources.h>
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#include "TerminalSettingsSerializationHelpers.h"
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using namespace winrt::Microsoft::Terminal::Settings::Model;
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using namespace winrt::Windows::Foundation::Collections;
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using namespace ::Microsoft::Terminal::Settings::Model;
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namespace winrt
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{
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namespace MUX = Microsoft::UI::Xaml;
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namespace WUX = Windows::UI::Xaml;
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}
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static constexpr std::string_view NameKey{ "name" };
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static constexpr std::string_view IconKey{ "icon" };
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static constexpr std::string_view ActionKey{ "command" };
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static constexpr std::string_view ArgsKey{ "args" };
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static constexpr std::string_view IterateOnKey{ "iterateOn" };
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static constexpr std::string_view CommandsKey{ "commands" };
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static constexpr std::string_view KeysKey{ "keys" };
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static constexpr std::string_view IdKey{ "id" };
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static constexpr std::string_view ProfileNameToken{ "${profile.name}" };
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static constexpr std::string_view ProfileIconToken{ "${profile.icon}" };
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static constexpr std::string_view SchemeNameToken{ "${scheme.name}" };
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namespace winrt::Microsoft::Terminal::Settings::Model::implementation
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{
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Command::Command()
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{
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}
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com_ptr<Command> Command::Copy() const
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{
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auto command{ winrt::make_self<Command>() };
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command->_name = _name;
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command->_ActionAndArgs = *get_self<implementation::ActionAndArgs>(_ActionAndArgs)->Copy();
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command->_keyMappings = _keyMappings;
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command->_iconPath = _iconPath;
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command->_IterateOn = _IterateOn;
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command->_originalJson = _originalJson;
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command->_nestedCommand = _nestedCommand;
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if (HasNestedCommands())
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{
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command->_subcommands = winrt::single_threaded_map<winrt::hstring, Model::Command>();
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for (auto kv : NestedCommands())
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{
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const auto subCmd{ winrt::get_self<Command>(kv.Value()) };
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command->_subcommands.Insert(kv.Key(), *subCmd->Copy());
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}
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}
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return command;
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}
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IMapView<winrt::hstring, Model::Command> Command::NestedCommands() const
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{
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return _subcommands ? _subcommands.GetView() : nullptr;
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}
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void Command::NestedCommands(const IMapView<winrt::hstring, Model::Command>& commands)
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{
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_subcommands.Clear();
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for (auto kv : commands)
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{
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const auto subCmd{ winrt::get_self<Command>(kv.Value()) };
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_subcommands.Insert(kv.Key(), *subCmd->Copy());
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}
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}
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// Function Description:
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// - reports if the current command has nested commands
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// - This CANNOT detect { "name": "foo", "commands": null }
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bool Command::HasNestedCommands() const
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{
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return _subcommands ? _subcommands.Size() > 0 : false;
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}
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// Function Description:
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// - reports if the current command IS a nested command
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// - This CAN be used to detect cases like { "name": "foo", "commands": null }
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bool Command::IsNestedCommand() const noexcept
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{
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return _nestedCommand;
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}
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bool Command::HasName() const noexcept
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{
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return _name.has_value();
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}
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hstring Command::Name() const noexcept
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{
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if (_name.has_value())
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{
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// name was explicitly set, return that value.
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return hstring{ _name.value() };
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}
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else if (_ActionAndArgs)
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{
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// generate a name from our action
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return get_self<implementation::ActionAndArgs>(_ActionAndArgs)->GenerateName();
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}
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else
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{
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// we have no name
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return {};
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}
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}
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void Command::Name(const hstring& value)
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{
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if (!_name.has_value() || _name.value() != value)
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{
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_name = value;
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}
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}
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std::vector<Control::KeyChord> Command::KeyMappings() const noexcept
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{
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return _keyMappings;
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}
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// Function Description:
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// - Add the key chord to the command's list of key mappings.
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// - If the key chord was already registered, move it to the back
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// of the line, and dispatch a notification that Command::Keys changed.
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// Arguments:
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// - keys: the new key chord that we are registering this command to
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// Return Value:
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// - <none>
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void Command::RegisterKey(const Control::KeyChord& keys)
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{
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if (!keys)
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{
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return;
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}
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// Remove the KeyChord and add it to the back of the line.
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// This makes it so that the main key chord associated with this
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// command is updated.
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EraseKey(keys);
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_keyMappings.push_back(keys);
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}
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// Function Description:
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// - Remove the key chord from the command's list of key mappings.
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// Arguments:
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// - keys: the key chord that we are unregistering
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// Return Value:
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// - <none>
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void Command::EraseKey(const Control::KeyChord& keys)
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{
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_keyMappings.erase(std::remove_if(_keyMappings.begin(), _keyMappings.end(), [&keys](const Control::KeyChord& iterKey) {
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return keys.Modifiers() == iterKey.Modifiers() && keys.Vkey() == iterKey.Vkey();
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}),
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_keyMappings.end());
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}
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// Function Description:
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// - Keys is the Command's identifying KeyChord. The command may have multiple keys associated
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// with it, but we'll only ever display the most recently added one externally. To do this,
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// _keyMappings stores all of the associated key chords, but ensures that the last entry
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// is the most recently added one.
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// Arguments:
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// - <none>
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// Return Value:
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// - the primary key chord associated with this Command
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Control::KeyChord Command::Keys() const noexcept
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{
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if (_keyMappings.empty())
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{
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return nullptr;
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}
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return _keyMappings.back();
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}
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hstring Command::KeyChordText() const noexcept
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{
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return KeyChordSerialization::ToString(Keys());
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}
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hstring Command::IconPath() const noexcept
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{
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if (_iconPath.has_value())
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{
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return hstring{ *_iconPath };
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}
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return {};
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}
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void Command::IconPath(const hstring& val)
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{
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if (!_iconPath.has_value() || _iconPath.value() != val)
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{
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_iconPath = val;
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}
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}
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// Function Description:
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// - attempt to get the name of this command from the provided json object.
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// * If the "name" property is a string, return that value.
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// * If the "name" property is an object, attempt to lookup the string
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// resource specified by the "key" property, to support localizable
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// command names.
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// Arguments:
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// - json: The Json::Value representing the command object we should get the name for.
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// Return Value:
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// - the empty string if we couldn't find a name, otherwise the command's name.
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static std::optional<std::wstring> _nameFromJson(const Json::Value& json)
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{
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if (const auto name{ json[JsonKey(NameKey)] })
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{
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if (name.isObject())
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{
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if (const auto resourceKey{ JsonUtils::GetValueForKey<std::optional<std::wstring>>(name, "key") })
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{
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if (HasLibraryResourceWithName(*resourceKey))
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{
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return std::wstring{ GetLibraryResourceString(*resourceKey) };
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}
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}
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}
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else if (name.isString())
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{
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return JsonUtils::GetValue<std::wstring>(name);
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}
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}
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else if (json.isMember(JsonKey(NameKey)))
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{
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// { "name": null, "command": "copy" } will land in this case, which
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// should also be used for unbinding.
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return std::wstring{};
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}
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return std::nullopt;
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}
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// Method Description:
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// - Deserialize a Command from the `json` object. The json object should
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// contain a "name" and "action", and optionally an "icon".
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// * "name": string|object - the name of the command to display in the
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// command palette. If this is an object, look for the "key" property,
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// and try to load the string from our resources instead.
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// * "action": string|object - A ShortcutAction, either as a name or as an
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// ActionAndArgs serialization. See ActionAndArgs::FromJson for details.
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// If this is null, we'll remove this command from the list of commands.
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// Arguments:
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// - json: the Json::Value to deserialize into a Command
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// - warnings: If there were any warnings during parsing, they'll be
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// appended to this vector.
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// Return Value:
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// - the newly constructed Command object.
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winrt::com_ptr<Command> Command::FromJson(const Json::Value& json,
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std::vector<SettingsLoadWarnings>& warnings)
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{
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auto result = winrt::make_self<Command>();
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if (const auto idJson{ json[JsonKey(IdKey)] })
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{
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if (idJson.isString())
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{
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result->ExternalID(to_hstring(idJson.asCString()));
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}
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}
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bool nested = false;
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JsonUtils::GetValueForKey(json, IterateOnKey, result->_IterateOn);
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// For iterable commands, we'll make another pass at parsing them once
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// the json is patched. So ignore parsing sub-commands for now. Commands
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// will only be marked iterable on the first pass.
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if (const auto nestedCommandsJson{ json[JsonKey(CommandsKey)] })
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{
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// Initialize our list of subcommands.
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result->_subcommands = winrt::single_threaded_map<winrt::hstring, Model::Command>();
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result->_nestedCommand = true;
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auto nestedWarnings = Command::LayerJson(result->_subcommands, nestedCommandsJson);
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// It's possible that the nested commands have some warnings
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warnings.insert(warnings.end(), nestedWarnings.begin(), nestedWarnings.end());
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if (result->_subcommands.Size() == 0)
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{
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warnings.push_back(SettingsLoadWarnings::FailedToParseSubCommands);
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result->_ActionAndArgs = make<implementation::ActionAndArgs>();
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}
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nested = true;
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}
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else if (json.isMember(JsonKey(CommandsKey)))
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{
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// { "name": "foo", "commands": null } will land in this case, which
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// should also be used for unbinding.
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// create an "invalid" ActionAndArgs
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result->_ActionAndArgs = make<implementation::ActionAndArgs>();
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result->_nestedCommand = true;
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}
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JsonUtils::GetValueForKey(json, IconKey, result->_iconPath);
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// If we're a nested command, we can ignore the current action.
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if (!nested)
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{
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if (const auto actionJson{ json[JsonKey(ActionKey)] })
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{
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result->_ActionAndArgs = *ActionAndArgs::FromJson(actionJson, warnings);
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}
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else
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{
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// { name: "foo", action: null } will land in this case, which
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// should also be used for unbinding.
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// create an "invalid" ActionAndArgs
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result->_ActionAndArgs = make<implementation::ActionAndArgs>();
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}
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// GH#4239 - If the user provided more than one key
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// chord to a "keys" array, warn the user here.
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// TODO: GH#1334 - remove this check.
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const auto keysJson{ json[JsonKey(KeysKey)] };
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if (keysJson.isArray() && keysJson.size() > 1)
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{
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warnings.push_back(SettingsLoadWarnings::TooManyKeysForChord);
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}
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else
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{
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Control::KeyChord keys{ nullptr };
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if (JsonUtils::GetValueForKey(json, KeysKey, keys))
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{
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result->RegisterKey(keys);
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}
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}
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}
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// If an iterable command doesn't have a name set, we'll still just
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// try and generate a fake name for the command give the string we
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// currently have. It'll probably generate something like "New tab,
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// profile: ${profile.name}". This string will only be temporarily
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// used internally, so there's no problem.
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result->_name = _nameFromJson(json);
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// Stash the original json value in this object. If the command is
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// iterable, we'll need to re-parse it later, once we know what all the
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// values we can iterate on are.
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result->_originalJson = json;
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return result;
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}
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// Function Description:
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// - Attempt to parse all the json objects in `json` into new Command
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// objects, and add them to the map of commands.
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// - If any parsed command has
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// the same Name as an existing command in commands, the new one will
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// layer on top of the existing one.
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// Arguments:
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// - commands: a map of Name->Command which new commands should be layered upon.
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// - json: A Json::Value containing an array of serialized commands
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// Return Value:
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// - A vector containing any warnings detected while parsing
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std::vector<SettingsLoadWarnings> Command::LayerJson(IMap<winrt::hstring, Model::Command>& commands,
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const Json::Value& json)
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{
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std::vector<SettingsLoadWarnings> warnings;
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for (const auto& value : json)
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{
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if (value.isObject())
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{
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try
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{
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const auto result = Command::FromJson(value, warnings);
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if (result->ActionAndArgs().Action() == ShortcutAction::Invalid && !result->HasNestedCommands())
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{
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// If there wasn't a parsed command, then try to get the
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// name from the json blob. If that name currently
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// exists in our list of commands, we should remove it.
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const auto name = _nameFromJson(value);
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if (name.has_value() && !name->empty())
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{
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commands.Remove(*name);
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}
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}
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else
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{
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// Override commands with the same name
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commands.Insert(result->Name(), *result);
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}
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}
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CATCH_LOG();
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}
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}
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return warnings;
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}
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// Function Description:
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// - Serialize the Command into an array of json actions
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// Arguments:
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// - <none>
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// Return Value:
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// - an array of serialized actions
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Json::Value Command::ToJson() const
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{
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Json::Value cmdList{ Json::ValueType::arrayValue };
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if (_nestedCommand || _IterateOn != ExpandCommandType::None)
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{
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// handle special commands
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// For these, we can trust _originalJson to be correct.
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// In fact, we _need_ to use it here because we don't actually deserialize `iterateOn`
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// until we expand the command.
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cmdList.append(_originalJson);
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}
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else if (_keyMappings.empty())
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{
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// only write out one command
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Json::Value cmdJson{ Json::ValueType::objectValue };
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JsonUtils::SetValueForKey(cmdJson, IconKey, _iconPath);
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JsonUtils::SetValueForKey(cmdJson, NameKey, _name);
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if (_ActionAndArgs)
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{
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cmdJson[JsonKey(ActionKey)] = ActionAndArgs::ToJson(_ActionAndArgs);
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}
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cmdList.append(cmdJson);
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}
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else
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{
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// we'll write out one command per key mapping
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for (auto keys{ _keyMappings.begin() }; keys != _keyMappings.end(); ++keys)
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{
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Json::Value cmdJson{ Json::ValueType::objectValue };
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if (keys == _keyMappings.begin())
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{
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// First iteration also writes icon and name
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JsonUtils::SetValueForKey(cmdJson, IconKey, _iconPath);
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JsonUtils::SetValueForKey(cmdJson, NameKey, _name);
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}
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if (_ActionAndArgs)
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{
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cmdJson[JsonKey(ActionKey)] = ActionAndArgs::ToJson(_ActionAndArgs);
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}
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JsonUtils::SetValueForKey(cmdJson, KeysKey, *keys);
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cmdList.append(cmdJson);
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}
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}
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return cmdList;
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}
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// Function Description:
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// - Helper to escape a string as a json string. This function will also
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// trim off the leading and trailing double-quotes, so the output string
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// can be inserted directly into another json blob.
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// Arguments:
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// - input: the string to JSON escape.
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// Return Value:
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// - the input string escaped properly to be inserted into another json blob.
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std::string _escapeForJson(const std::string& input)
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{
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Json::Value inJson{ input };
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Json::StreamWriterBuilder builder;
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builder.settings_["indentation"] = "";
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std::string out{ Json::writeString(builder, inJson) };
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if (out.size() >= 2)
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{
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// trim off the leading/trailing '"'s
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auto ss{ out.substr(1, out.size() - 2) };
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return ss;
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}
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return out;
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}
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// Method Description:
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// - Iterate over all the provided commands, and recursively expand any
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// commands with `iterateOn` set. If we successfully generated expanded
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// commands for them, then we'll remove the original command, and add all
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// the newly generated commands.
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// - For more specific implementation details, see _expandCommand.
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// Arguments:
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// - commands: a map of commands to expand. Newly created commands will be
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// inserted into the map to replace the expandable commands.
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// - profiles: A list of all the profiles that this command should be expanded on.
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// - warnings: If there were any warnings during parsing, they'll be
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// appended to this vector.
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// Return Value:
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// - <none>
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void Command::ExpandCommands(IMap<winrt::hstring, Model::Command> commands,
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IVectorView<Model::Profile> profiles,
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IVectorView<Model::ColorScheme> schemes,
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IVector<SettingsLoadWarnings> warnings)
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{
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std::vector<winrt::hstring> commandsToRemove;
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std::vector<Model::Command> commandsToAdd;
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// First, collect up all the commands that need replacing.
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for (const auto& nameAndCmd : commands)
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{
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auto cmd{ get_self<implementation::Command>(nameAndCmd.Value()) };
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auto newCommands = _expandCommand(cmd, profiles, schemes, warnings);
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if (newCommands.size() > 0)
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{
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commandsToRemove.push_back(nameAndCmd.Key());
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commandsToAdd.insert(commandsToAdd.end(), newCommands.begin(), newCommands.end());
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}
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}
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// Second, remove all the commands that need to be removed.
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for (auto& name : commandsToRemove)
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{
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commands.Remove(name);
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}
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// Finally, add all the new commands.
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for (auto& cmd : commandsToAdd)
|
|
{
|
|
commands.Insert(cmd.Name(), cmd);
|
|
}
|
|
}
|
|
|
|
// Function Description:
|
|
// - Attempts to expand the given command into many commands, if the command
|
|
// has `"iterateOn": "profiles"` set.
|
|
// - If it doesn't, this function will do
|
|
// nothing and return an empty vector.
|
|
// - If it does, we're going to attempt to build a new set of commands using
|
|
// the given command as a prototype. We'll attempt to create a new command
|
|
// for each and every profile, to replace the original command.
|
|
// * For the new commands, we'll replace any instance of "${profile.name}"
|
|
// in the original json used to create this action with the name of the
|
|
// given profile.
|
|
// - If we encounter any errors while re-parsing the json with the replaced
|
|
// name, we'll just return immediately.
|
|
// - At the end, we'll return all the new commands we've build for the given command.
|
|
// Arguments:
|
|
// - expandable: the Command to potentially turn into more commands
|
|
// - profiles: A list of all the profiles that this command should be expanded on.
|
|
// - warnings: If there were any warnings during parsing, they'll be
|
|
// appended to this vector.
|
|
// Return Value:
|
|
// - and empty vector if the command wasn't expandable, otherwise a list of
|
|
// the newly-created commands.
|
|
std::vector<Model::Command> Command::_expandCommand(Command* const expandable,
|
|
IVectorView<Model::Profile> profiles,
|
|
IVectorView<Model::ColorScheme> schemes,
|
|
IVector<SettingsLoadWarnings>& warnings)
|
|
{
|
|
std::vector<Model::Command> newCommands;
|
|
|
|
if (expandable->HasNestedCommands())
|
|
{
|
|
ExpandCommands(expandable->_subcommands, profiles, schemes, warnings);
|
|
}
|
|
|
|
if (expandable->_IterateOn == ExpandCommandType::None)
|
|
{
|
|
return newCommands;
|
|
}
|
|
|
|
std::string errs; // This string will receive any error text from failing to parse.
|
|
std::unique_ptr<Json::CharReader> reader{ Json::CharReaderBuilder::CharReaderBuilder().newCharReader() };
|
|
|
|
// First, get a string for the original Json::Value
|
|
auto oldJsonString = expandable->_originalJson.toStyledString();
|
|
|
|
auto reParseJson = [&](const auto& newJsonString) -> bool {
|
|
// - Now, re-parse the modified value.
|
|
Json::Value newJsonValue;
|
|
const auto actualDataStart = newJsonString.data();
|
|
const auto actualDataEnd = newJsonString.data() + newJsonString.size();
|
|
if (!reader->parse(actualDataStart, actualDataEnd, &newJsonValue, &errs))
|
|
{
|
|
warnings.Append(SettingsLoadWarnings::FailedToParseCommandJson);
|
|
// If we encounter a re-parsing error, just stop processing the rest of the commands.
|
|
return false;
|
|
}
|
|
|
|
// Pass the new json back though FromJson, to get the new expanded value.
|
|
std::vector<SettingsLoadWarnings> newWarnings;
|
|
if (auto newCmd{ Command::FromJson(newJsonValue, newWarnings) })
|
|
{
|
|
newCommands.push_back(*newCmd);
|
|
}
|
|
std::for_each(newWarnings.begin(), newWarnings.end(), [warnings](auto& warn) { warnings.Append(warn); });
|
|
return true;
|
|
};
|
|
|
|
if (expandable->_IterateOn == ExpandCommandType::Profiles)
|
|
{
|
|
for (const auto& p : profiles)
|
|
{
|
|
// For each profile, create a new command. This command will have:
|
|
// * the icon path and keychord text of the original command
|
|
// * the Name will have any instances of "${profile.name}"
|
|
// replaced with the profile's name
|
|
// * for the action, we'll take the original json, replace any
|
|
// instances of "${profile.name}" with the profile's name,
|
|
// then re-attempt to parse the action and args.
|
|
|
|
// Replace all the keywords in the original json, and try and parse that
|
|
|
|
// - Escape the profile name for JSON appropriately
|
|
auto escapedProfileName = _escapeForJson(til::u16u8(p.Name()));
|
|
auto escapedProfileIcon = _escapeForJson(til::u16u8(p.Icon()));
|
|
auto newJsonString = til::replace_needle_in_haystack(oldJsonString,
|
|
ProfileNameToken,
|
|
escapedProfileName);
|
|
til::replace_needle_in_haystack_inplace(newJsonString,
|
|
ProfileIconToken,
|
|
escapedProfileIcon);
|
|
|
|
// If we encounter a re-parsing error, just stop processing the rest of the commands.
|
|
if (!reParseJson(newJsonString))
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else if (expandable->_IterateOn == ExpandCommandType::ColorSchemes)
|
|
{
|
|
for (const auto& s : schemes)
|
|
{
|
|
// For each scheme, create a new command. We'll take the
|
|
// original json, replace any instances of "${scheme.name}" with
|
|
// the scheme's name, then re-attempt to parse the action and
|
|
// args.
|
|
|
|
// - Escape the profile name for JSON appropriately
|
|
auto escapedSchemeName = _escapeForJson(til::u16u8(s.Name()));
|
|
auto newJsonString = til::replace_needle_in_haystack(oldJsonString,
|
|
SchemeNameToken,
|
|
escapedSchemeName);
|
|
|
|
// If we encounter a re-parsing error, just stop processing the rest of the commands.
|
|
if (!reParseJson(newJsonString))
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return newCommands;
|
|
}
|
|
|
|
void Command::LayerCommand(const Model::Command& cmd)
|
|
{
|
|
// Merge the incoming cmd with the one found in staging.
|
|
// We'll overwrite the staging cmd's values if the incoming cmd has those values.
|
|
const auto cmdImpl{ get_self<Command>(cmd) };
|
|
if (cmdImpl->HasName())
|
|
{
|
|
Name(cmdImpl->Name());
|
|
}
|
|
|
|
for (const auto& keys : cmdImpl->KeyMappings())
|
|
{
|
|
RegisterKey(keys);
|
|
}
|
|
|
|
if (!cmdImpl->IconPath().empty())
|
|
{
|
|
IconPath(cmd.IconPath());
|
|
}
|
|
|
|
// Copy over the nested commands if there are some.
|
|
// Otherwise just copy the ActionAndArgs if they're valid.
|
|
IterateOn(cmdImpl->IterateOn());
|
|
if (cmdImpl->HasNestedCommands())
|
|
{
|
|
NestedCommands(cmd.NestedCommands());
|
|
}
|
|
|
|
if (cmd.ActionAndArgs().Action() != ShortcutAction::Invalid)
|
|
{
|
|
ActionAndArgs(cmd.ActionAndArgs());
|
|
}
|
|
}
|
|
}
|