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Code Issues Releases Wiki Activity

Guard click handlers that capture session data.

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Click handlers invocation is done by posting on_main,
so in rare cases the session may be already destroyed.
This commit is contained in:
John Preston
2020-05-04 17:38:49 +04:00
parent 038d8f1781
commit 6adcf660f1
6 changed files with 75 additions and 30 deletions
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31
Telegram/SourceFiles/data/data_document.cpp
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@@ -12,6 +12,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
#include "data/data_document_good_thumbnail.h"
#include "lang/lang_keys.h"
#include "inline_bots/inline_bot_layout_item.h"
#include "main/main_session.h"
#include "mainwidget.h"
#include "core/file_utilities.h"
#include "core/media_active_cache.h"
@@ -296,6 +297,14 @@ QString documentSaveFilename(const DocumentData *data, bool forceSavingAs = fals
return FileNameForSave(caption, filter, prefix, name, forceSavingAs, dir);
}
DocumentClickHandler::DocumentClickHandler(
not_null<DocumentData*> document,
FullMsgId context)
: FileClickHandler(context)
, _session(&document->session())
, _document(document) {
}
void DocumentOpenClickHandler::Open(
Data::FileOrigin origin,
not_null<DocumentData*> data,
@@ -345,7 +354,9 @@ void DocumentOpenClickHandler::Open(
}
void DocumentOpenClickHandler::onClickImpl() const {
Open(context(), document(), getActionItem());
if (valid()) {
Open(context(), document(), getActionItem());
}
}
void DocumentSaveClickHandler::Save(
@@ -385,14 +396,20 @@ void DocumentSaveClickHandler::Save(
}
void DocumentSaveClickHandler::onClickImpl() const {
Save(context(), document());
if (valid()) {
Save(context(), document());
}
}
void DocumentCancelClickHandler::onClickImpl() const {
const auto data = document();
if (!data->date) return;
if (!valid()) {
return;
}
if (data->uploading()) {
const auto data = document();
if (!data->date) {
return;
} else if (data->uploading()) {
if (const auto item = data->owner().message(context())) {
App::main()->cancelUploadLayer(item);
}
@@ -423,7 +440,9 @@ void DocumentOpenWithClickHandler::Open(
}
void DocumentOpenWithClickHandler::onClickImpl() const {
Open(context(), document());
if (valid()) {
Open(context(), document());
}
}
Data::FileOrigin StickerData::setOrigin() const {