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implement drag&drop files to application window

This commit is contained in:
Vadim Lopatin 2015-02-13 13:37:24 +03:00
parent 218093443b
commit 26d9481506
2 changed files with 38 additions and 1 deletions
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14
src/dlangui/platforms/common/platform.d
View File

@ -263,6 +263,20 @@ class Window {
return false;
}
/// called when user dragged file(s) to application window
void handleDroppedFiles(string[] filenames) {
//Log.d("handleDroppedFiles(", filenames, ")");
if (_onFilesDropped)
_onFilesDropped(filenames);
}
protected void delegate(string[]) _onFilesDropped;
/// get handler for files dropped to app window
@property void delegate(string[]) onFilesDropped() { return _onFilesDropped; }
/// set handler for files dropped to app window
@property Window onFilesDropped(void delegate(string[]) handler) { _onFilesDropped = handler; return this; }
/// hide tooltip if shown and cancel tooltip timer if set
void hideTooltip() {
if (_tooltip.popup) {

25
src/dlangui/platforms/windows/winapp.d
View File

@ -200,7 +200,6 @@ class Win32Window : Window {
null, // window menu handle
_hInstance, // program instance handle
cast(void*)this); // creation parameters
version (USE_OPENGL) {
import derelict.opengl3.wgl;
@ -324,6 +323,13 @@ class Win32Window : Window {
PostMessageW(_hwnd, CUSTOM_MESSAGE_ID, 0, event.uniqueId);
}
/// set handler for files dropped to app window
override @property Window onFilesDropped(void delegate(string[]) handler) {
super.onFilesDropped(handler);
DragAcceptFiles(_hwnd, handler ? TRUE : FALSE);
return this;
}
private long _nextExpectedTimerTs;
private UINT_PTR _timerId = 1;
@ -1141,6 +1147,23 @@ LRESULT WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
return 0;
}
break;
case WM_DROPFILES:
if (window !is null) {
HDROP hdrop = cast(HDROP)wParam;
string[] files;
wchar[] buf;
auto count = DragQueryFileW(hdrop, 0xFFFFFFFF, cast(wchar*)NULL, 0);
for (int i = 0; i < count; i++) {
auto sz = DragQueryFileW(hdrop, i, cast(wchar*)NULL, 0);
buf.length = sz + 2;
sz = DragQueryFileW(hdrop, i, buf.ptr, sz + 1);
files ~= toUTF8(buf[0..sz]);
}
if (files.length)
window.handleDroppedFiles(files);
DragFinish(hdrop);
}
return 0;
case WM_GETMINMAXINFO:
case WM_NCCREATE:
case WM_NCCALCSIZE: