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Code Issues Packages Projects Releases Wiki Activity

shortcuts and actions handling signals in widgets; close #189

This commit is contained in:
Vadim Lopatin 2016-06-28 17:30:49 +03:00
parent f68cce12b1
commit 9880447987
2 changed files with 62 additions and 32 deletions
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71
examples/example1/src/example1.d
View File

@ -341,31 +341,33 @@ extern (C) int UIAppMain(string[] args) {
mainMenuItems.add(windowItem);
mainMenuItems.add(helpItem);
MainMenu mainMenu = new MainMenu(mainMenuItems);
mainMenu.menuItemClick = delegate(MenuItem item) {
Log.d("mainMenu.onMenuItemListener", item.label);
const Action a = item.action;
if (a) {
if (a.id == ACTION_FILE_EXIT) {
window.close();
return true;
} else if (a.id == 41) {
window.showMessageBox(UIString("About"d), UIString("DLangUI demo app\n(C) Vadim Lopatin, 2014\nhttp://github.com/buggins/dlangui"d));
return true;
} else if (a.id == ACTION_FILE_OPEN) {
UIString caption;
caption = "Open Text File"d;
FileDialog dlg = new FileDialog(caption, window, null);
dlg.addFilter(FileFilterEntry(UIString("FILTER_ALL_FILES", "All files (*)"d), "*"));
dlg.addFilter(FileFilterEntry(UIString("FILTER_TEXT_FILES", "Text files (*.txt)"d), "*.txt"));
dlg.addFilter(FileFilterEntry(UIString("FILTER_SOURCE_FILES", "Source files"d), "*.d;*.dd;*.c;*.cc;*.cpp;*.h;*.hpp"));
dlg.addFilter(FileFilterEntry(UIString("FILTER_EXECUTABLE_FILES", "Executable files"d), "*", true));
//dlg.filterIndex = 2;
dlg.dialogResult = delegate(Dialog dlg, const Action result) {
if (result.id == ACTION_OPEN.id) {
string filename = result.stringParam;
if (filename.endsWith(".d") || filename.endsWith(".txt") || filename.endsWith(".cpp") || filename.endsWith(".h") || filename.endsWith(".c")
|| filename.endsWith(".json") || filename.endsWith(".dd") || filename.endsWith(".ddoc") || filename.endsWith(".xml") || filename.endsWith(".html")
|| filename.endsWith(".html") || filename.endsWith(".css") || filename.endsWith(".log") || filename.endsWith(".hpp")) {
contentLayout.addChild(mainMenu);
// to let main menu handle keyboard shortcuts
contentLayout.keyToAction = delegate(Widget source, uint keyCode, uint flags) {
return mainMenu.findKeyAction(keyCode, flags);
};
contentLayout.onAction = delegate(Widget source, const Action a) {
if (a.id == ACTION_FILE_EXIT) {
window.close();
return true;
} else if (a.id == 41) {
window.showMessageBox(UIString("About"d), UIString("DLangUI demo app\n(C) Vadim Lopatin, 2014\nhttp://github.com/buggins/dlangui"d));
return true;
} else if (a.id == ACTION_FILE_OPEN) {
UIString caption;
caption = "Open Text File"d;
FileDialog dlg = new FileDialog(caption, window, null);
dlg.addFilter(FileFilterEntry(UIString("FILTER_ALL_FILES", "All files (*)"d), "*"));
dlg.addFilter(FileFilterEntry(UIString("FILTER_TEXT_FILES", "Text files (*.txt)"d), "*.txt"));
dlg.addFilter(FileFilterEntry(UIString("FILTER_SOURCE_FILES", "Source files"d), "*.d;*.dd;*.c;*.cc;*.cpp;*.h;*.hpp"));
dlg.addFilter(FileFilterEntry(UIString("FILTER_EXECUTABLE_FILES", "Executable files"d), "*", true));
//dlg.filterIndex = 2;
dlg.dialogResult = delegate(Dialog dlg, const Action result) {
if (result.id == ACTION_OPEN.id) {
string filename = result.stringParam;
if (filename.endsWith(".d") || filename.endsWith(".txt") || filename.endsWith(".cpp") || filename.endsWith(".h") || filename.endsWith(".c")
|| filename.endsWith(".json") || filename.endsWith(".dd") || filename.endsWith(".ddoc") || filename.endsWith(".xml") || filename.endsWith(".html")
|| filename.endsWith(".html") || filename.endsWith(".css") || filename.endsWith(".log") || filename.endsWith(".hpp")) {
// open source file in tab
int index = tabs.tabIndex(filename);
if (index >= 0) {
@ -385,17 +387,22 @@ extern (C) int UIAppMain(string[] args) {
Log.d("FileDialog.onDialogResult: ", result, " param=", result.stringParam);
window.showMessageBox(UIString("FileOpen result"d), UIString("Filename: "d ~ toUTF32(filename)));
}
}
}
};
dlg.show();
return true;
} else
return contentLayout.dispatchAction(a);
};
dlg.show();
return true;
} else
return contentLayout.dispatchAction(a);
};
mainMenu.menuItemClick = delegate(MenuItem item) {
Log.d("mainMenu.onMenuItemListener", item.label);
const Action a = item.action;
if (a) {
return contentLayout.dispatchAction(a);
}
return false;
};
contentLayout.addChild(mainMenu);
// ========= create tabs ===================

23
src/dlangui/widgets/widget.d
View File

@ -96,6 +96,16 @@ interface OnKeyHandler {
bool onKey(Widget source, KeyEvent event);
}
/// interface - slot for keyToAction
interface OnKeyActionHandler {
Action findKeyAction(Widget source, uint keyCode, uint keyFlags);
}
/// interface - slot for onAction
interface OnActionHandler {
bool onAction(Widget source, const Action action);
}
/// interface - slot for onMouse
interface OnMouseHandler {
bool onMouse(Widget source, MouseEvent event);
@ -1093,6 +1103,9 @@ public:
/// override to handle specific actions
bool handleAction(const Action a) {
if (onAction.assigned)
if (onAction(this, a))
return true;
return false;
}
/// override to handle specific actions state (e.g. change enabled state for supported actions)
@ -1144,6 +1157,10 @@ public:
/// map key to action
Action findKeyAction(uint keyCode, uint flags) {
Action action = _acceleratorMap.findByKey(keyCode, flags);
if (action)
return action;
if (keyToAction.assigned)
action = keyToAction(this, keyCode, flags);
return action;
}
@ -1282,6 +1299,12 @@ public:
/// key event listener (bool delegate(Widget, KeyEvent)) - return true if event is processed by handler
Signal!OnKeyHandler keyEvent;
/// action by key lookup handler
Listener!OnKeyActionHandler keyToAction;
/// action handlers
Signal!OnActionHandler onAction;
/// mouse event listener (bool delegate(Widget, MouseEvent)) - return true if event is processed by handler
Signal!OnMouseHandler mouseEvent;