tdesktop/Telegram/SourceFiles/shortcuts.cpp

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/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
#include "shortcuts.h"
#include "mainwindow.h"
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#include "mainwidget.h"
#include "messenger.h"
#include "media/player/media_player_instance.h"
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#include "platform/platform_specific.h"
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#include "base/parse_helper.h"
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namespace ShortcutCommands {
using Handler = bool(*)();
bool lock_telegram() {
if (!Messenger::Instance().passcodeLocked()
&& Global::LocalPasscode()) {
Messenger::Instance().lockByPasscode();
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return true;
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}
return false;
}
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bool minimize_telegram() {
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return Messenger::Instance().minimizeActiveWindow();
}
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bool close_telegram() {
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return Messenger::Instance().closeActiveWindow();
}
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bool quit_telegram() {
App::quit();
return true;
}
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//void start_stop_recording() {
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//}
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//void cancel_recording() {
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//}
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bool media_play() {
Media::Player::instance()->play();
return true;
}
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bool media_pause() {
Media::Player::instance()->pause(AudioMsgId::Type::Song);
return true;
}
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bool media_playpause() {
Media::Player::instance()->playPause();
return true;
}
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bool media_stop() {
Media::Player::instance()->stop();
return true;
}
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bool media_previous() {
Media::Player::instance()->previous();
return true;
}
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bool media_next() {
Media::Player::instance()->next();
return true;
}
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bool search() {
if (auto m = App::main()) {
return m->cmd_search();
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}
return false;
}
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bool previous_chat() {
if (auto m = App::main()) {
return m->cmd_previous_chat();
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}
return false;
}
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bool next_chat() {
if (auto m = App::main()) {
return m->cmd_next_chat();
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}
return false;
}
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// other commands here
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} // namespace ShortcutCommands
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inline bool qMapLessThanKey(const ShortcutCommands::Handler &a, const ShortcutCommands::Handler &b) {
return a < b;
}
namespace Shortcuts {
struct DataStruct;
DataStruct *DataPtr = nullptr;
namespace {
void createCommand(const QString &command, ShortcutCommands::Handler handler);
QKeySequence setShortcut(const QString &keys, const QString &command);
void destroyShortcut(QShortcut *shortcut);
} // namespace
struct DataStruct {
DataStruct() {
Assert(DataPtr == nullptr);
DataPtr = this;
if (autoRepeatCommands.isEmpty()) {
autoRepeatCommands.insert(qsl("media_previous"));
autoRepeatCommands.insert(qsl("media_next"));
autoRepeatCommands.insert(qsl("next_chat"));
autoRepeatCommands.insert(qsl("previous_chat"));
}
if (mediaCommands.isEmpty()) {
mediaCommands.insert(qsl("media_play"));
mediaCommands.insert(qsl("media_playpause"));
mediaCommands.insert(qsl("media_play"));
mediaCommands.insert(qsl("media_stop"));
mediaCommands.insert(qsl("media_previous"));
mediaCommands.insert(qsl("media_next"));
}
#define DeclareAlias(keys, command) setShortcut(qsl(keys), qsl(#command))
#define DeclareCommand(keys, command) createCommand(qsl(#command), ShortcutCommands::command); DeclareAlias(keys, command)
DeclareCommand("ctrl+w", close_telegram);
DeclareAlias("ctrl+f4", close_telegram);
DeclareCommand("ctrl+l", lock_telegram);
DeclareCommand("ctrl+m", minimize_telegram);
DeclareCommand("ctrl+q", quit_telegram);
//DeclareCommand("ctrl+r", start_stop_recording);
//DeclareCommand("ctrl+shift+r", cancel_recording);
//DeclareCommand("media record", start_stop_recording);
DeclareCommand("media play", media_play);
DeclareCommand("media pause", media_pause);
DeclareCommand("toggle media play/pause", media_playpause);
DeclareCommand("media stop", media_stop);
DeclareCommand("media previous", media_previous);
DeclareCommand("media next", media_next);
DeclareCommand("ctrl+f", search);
DeclareAlias("search", search);
DeclareAlias("find", search);
DeclareCommand("ctrl+pgdown", next_chat);
DeclareAlias("alt+down", next_chat);
DeclareCommand("ctrl+pgup", previous_chat);
DeclareAlias("alt+up", previous_chat);
if (cPlatform() == dbipMac || cPlatform() == dbipMacOld) {
DeclareAlias("meta+tab", next_chat);
DeclareAlias("meta+shift+tab", previous_chat);
DeclareAlias("meta+backtab", previous_chat);
} else {
DeclareAlias("ctrl+tab", next_chat);
DeclareAlias("ctrl+shift+tab", previous_chat);
DeclareAlias("ctrl+backtab", previous_chat);
}
// other commands here
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#undef DeclareCommand
#undef DeclareAlias
}
QStringList errors;
QMap<QString, ShortcutCommands::Handler> commands;
QMap<ShortcutCommands::Handler, QString> commandnames;
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QMap<QKeySequence, QShortcut*> sequences;
QMap<int, ShortcutCommands::Handler> handlers;
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QSet<QShortcut*> mediaShortcuts;
QSet<QString> autoRepeatCommands;
QSet<QString> mediaCommands;
};
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namespace {
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void createCommand(const QString &command, ShortcutCommands::Handler handler) {
Assert(DataPtr != nullptr);
Assert(!command.isEmpty());
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DataPtr->commands.insert(command, handler);
DataPtr->commandnames.insert(handler, command);
}
QKeySequence setShortcut(const QString &keys, const QString &command) {
Assert(DataPtr != nullptr);
Assert(!command.isEmpty());
if (keys.isEmpty()) return QKeySequence();
QKeySequence seq(keys, QKeySequence::PortableText);
if (seq.isEmpty()) {
DataPtr->errors.push_back(qsl("Could not derive key sequence '%1'!").arg(keys));
} else {
auto it = DataPtr->commands.constFind(command);
if (it == DataPtr->commands.cend()) {
LOG(("Warning: could not find shortcut command handler '%1'").arg(command));
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} else {
auto shortcut = std::make_unique<QShortcut>(seq, Messenger::Instance().getActiveWindow(), nullptr, nullptr, Qt::ApplicationShortcut);
if (!DataPtr->autoRepeatCommands.contains(command)) {
shortcut->setAutoRepeat(false);
}
auto isMediaShortcut = DataPtr->mediaCommands.contains(command);
if (isMediaShortcut) {
shortcut->setEnabled(false);
}
int shortcutId = shortcut->id();
if (!shortcutId) {
DataPtr->errors.push_back(qsl("Could not create shortcut '%1'!").arg(keys));
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} else {
auto seqIt = DataPtr->sequences.find(seq);
if (seqIt == DataPtr->sequences.cend()) {
seqIt = DataPtr->sequences.insert(seq, shortcut.release());
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} else {
auto oldShortcut = seqIt.value();
seqIt.value() = shortcut.release();
destroyShortcut(oldShortcut);
}
DataPtr->handlers.insert(shortcutId, it.value());
if (isMediaShortcut) {
DataPtr->mediaShortcuts.insert(seqIt.value());
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}
}
}
}
return seq;
}
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QKeySequence removeShortcut(const QString &keys) {
Assert(DataPtr != nullptr);
if (keys.isEmpty()) return QKeySequence();
QKeySequence seq(keys, QKeySequence::PortableText);
if (seq.isEmpty()) {
DataPtr->errors.push_back(qsl("Could not derive key sequence '%1'!").arg(keys));
} else {
auto seqIt = DataPtr->sequences.find(seq);
if (seqIt != DataPtr->sequences.cend()) {
auto shortcut = seqIt.value();
DataPtr->sequences.erase(seqIt);
destroyShortcut(shortcut);
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}
}
return seq;
}
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void destroyShortcut(QShortcut *shortcut) {
Assert(DataPtr != nullptr);
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DataPtr->handlers.remove(shortcut->id());
DataPtr->mediaShortcuts.remove(shortcut);
delete shortcut;
}
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} // namespace
void start() {
Assert(Global::started());
new DataStruct();
// write default shortcuts to a file if they are not there already
bool defaultValid = false;
QFile defaultFile(cWorkingDir() + qsl("tdata/shortcuts-default.json"));
if (defaultFile.open(QIODevice::ReadOnly)) {
QJsonParseError error = { 0, QJsonParseError::NoError };
QJsonDocument doc = QJsonDocument::fromJson(base::parse::stripComments(defaultFile.readAll()), &error);
defaultFile.close();
if (error.error == QJsonParseError::NoError && doc.isArray()) {
QJsonArray shortcuts(doc.array());
if (!shortcuts.isEmpty() && (*shortcuts.constBegin()).isObject()) {
QJsonObject versionObject((*shortcuts.constBegin()).toObject());
QJsonObject::const_iterator version = versionObject.constFind(qsl("version"));
if (version != versionObject.constEnd() && (*version).isString() && (*version).toString() == QString::number(AppVersion)) {
defaultValid = true;
}
}
}
}
if (!defaultValid && defaultFile.open(QIODevice::WriteOnly)) {
const char *defaultHeader = "\
// This is a list of default shortcuts for Telegram Desktop\n\
// Please don't modify it, its content is not used in any way\n\
// You can place your own shortcuts in the 'shortcuts-custom.json' file\n\n";
defaultFile.write(defaultHeader);
QJsonArray shortcuts;
QJsonObject version;
version.insert(qsl("version"), QString::number(AppVersion));
shortcuts.push_back(version);
for (auto i = DataPtr->sequences.cbegin(), e = DataPtr->sequences.cend(); i != e; ++i) {
auto h = DataPtr->handlers.constFind(i.value()->id());
if (h != DataPtr->handlers.cend()) {
auto n = DataPtr->commandnames.constFind(h.value());
if (n != DataPtr->commandnames.cend()) {
QJsonObject entry;
entry.insert(qsl("keys"), i.key().toString().toLower());
entry.insert(qsl("command"), n.value());
shortcuts.append(entry);
}
}
}
QJsonDocument doc;
doc.setArray(shortcuts);
defaultFile.write(doc.toJson(QJsonDocument::Indented));
defaultFile.close();
}
// read custom shortcuts from file if it exists or write an empty custom shortcuts file
QFile customFile(cWorkingDir() + qsl("tdata/shortcuts-custom.json"));
if (customFile.exists()) {
if (customFile.open(QIODevice::ReadOnly)) {
QJsonParseError error = { 0, QJsonParseError::NoError };
QJsonDocument doc = QJsonDocument::fromJson(base::parse::stripComments(customFile.readAll()), &error);
customFile.close();
if (error.error != QJsonParseError::NoError) {
DataPtr->errors.push_back(qsl("Failed to parse! Error: %2").arg(error.errorString()));
} else if (!doc.isArray()) {
DataPtr->errors.push_back(qsl("Failed to parse! Error: array expected"));
} else {
QJsonArray shortcuts = doc.array();
int limit = ShortcutsCountLimit;
for (QJsonArray::const_iterator i = shortcuts.constBegin(), e = shortcuts.constEnd(); i != e; ++i) {
if (!(*i).isObject()) {
DataPtr->errors.push_back(qsl("Bad entry! Error: object expected"));
} else {
QKeySequence seq;
QJsonObject entry((*i).toObject());
QJsonObject::const_iterator keys = entry.constFind(qsl("keys")), command = entry.constFind(qsl("command"));
if (keys == entry.constEnd() || command == entry.constEnd() || !(*keys).isString() || (!(*command).isString() && !(*command).isNull())) {
DataPtr->errors.push_back(qsl("Bad entry! {\"keys\": \"...\", \"command\": [ \"...\" | null ]} expected"));
} else if ((*command).isNull()) {
seq = removeShortcut((*keys).toString());
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} else {
seq = setShortcut((*keys).toString(), (*command).toString());
}
if (!--limit) {
DataPtr->errors.push_back(qsl("Too many entries! Limit is %1").arg(ShortcutsCountLimit));
break;
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}
}
}
}
} else {
DataPtr->errors.push_back(qsl("Could not read the file!"));
}
if (!DataPtr->errors.isEmpty()) {
DataPtr->errors.push_front(qsl("While reading file '%1'...").arg(customFile.fileName()));
}
} else if (customFile.open(QIODevice::WriteOnly)) {
const char *customContent = "\
// This is a list of your own shortcuts for Telegram Desktop\n\
// You can see full list of commands in the 'shortcuts-default.json' file\n\
// Place a null value instead of a command string to switch the shortcut off\n\n\
[\n\
// {\n\
// \"command\": \"close_telegram\",\n\
// \"keys\": \"ctrl+f4\"\n\
// },\n\
// {\n\
// \"command\": \"quit_telegram\",\n\
// \"keys\": \"ctrl+q\"\n\
// }\n\
]\n";
customFile.write(customContent);
customFile.close();
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}
}
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const QStringList &errors() {
Assert(DataPtr != nullptr);
return DataPtr->errors;
}
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bool launch(int shortcutId) {
Assert(DataPtr != nullptr);
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auto it = DataPtr->handlers.constFind(shortcutId);
if (it == DataPtr->handlers.cend()) {
return false;
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}
return (*it.value())();
}
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bool launch(const QString &command) {
Assert(DataPtr != nullptr);
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auto it = DataPtr->commands.constFind(command);
if (it == DataPtr->commands.cend()) {
return false;
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}
return (*it.value())();
}
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void enableMediaShortcuts() {
if (!DataPtr) return;
for_const (auto shortcut, DataPtr->mediaShortcuts) {
shortcut->setEnabled(true);
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}
Platform::SetWatchingMediaKeys(true);
}
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void disableMediaShortcuts() {
if (!DataPtr) return;
for_const (auto shortcut, DataPtr->mediaShortcuts) {
shortcut->setEnabled(false);
}
Platform::SetWatchingMediaKeys(false);
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}
void finish() {
delete DataPtr;
DataPtr = nullptr;
}
} // namespace Shortcuts