[pavucontrol] 01/07: Backport patches from upstream that fix gtk/glade usage

Felipe Sateler fsateler at moszumanska.debian.org
Wed Oct 22 23:49:27 UTC 2014


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fsateler pushed a commit to branch master
in repository pavucontrol.

commit 597bef2f0eb32ebb672684bc221c9288bae16565
Author: Felipe Sateler <fsateler at debian.org>
Date:   Wed Oct 22 20:02:46 2014 -0300

    Backport patches from upstream that fix gtk/glade usage
---
 ...he-widget-before-returning-it-from-create.patch | 196 +++++++++++++++++++++
 ...antiate-cardwidget-devicewidget-and-rolew.patch |  76 ++++++++
 debian/patches/series                              |   2 +
 3 files changed, 274 insertions(+)

diff --git a/debian/patches/0003-Reference-the-widget-before-returning-it-from-create.patch b/debian/patches/0003-Reference-the-widget-before-returning-it-from-create.patch
new file mode 100644
index 0000000..2d42d17
--- /dev/null
+++ b/debian/patches/0003-Reference-the-widget-before-returning-it-from-create.patch
@@ -0,0 +1,196 @@
+From: Hans de Goede <hdegoede at redhat.com>
+Date: Thu, 28 Aug 2014 12:58:05 +0200
+Subject: Reference the widget before returning it from ::create methods
+
+Widgets (unlike Windows and Dialogs) returned by Gtk::Builder::get_widget*
+start owned by the GtkBuilder object, the idea being that they will get
+added to a container before the scope of the GtkBuilder object ends, and it
+thus automatically gets destroyed.
+
+But in the various ::create methods in pavucontrol, a pointer to the widget
+gets returned, so that it can be added to a cointainer by the caller.
+However as soon as the ::create method exits the GtkBuilder object owning
+the widget, and thus also the widget gets destroyed, and we end up returning
+free-ed memory.
+
+This commit fixes this by making all ::create methods take a reference on
+the widget before returning it, and having all the callers unreference the
+widget after adding it to a container.
+
+https://bugs.freedesktop.org/show_bug.cgi?id=83144
+https://bugzilla.redhat.com/show_bug.cgi?id=1133339
+
+Signed-off-by: Hans de Goede <hdegoede at redhat.com>
+---
+ src/cardwidget.cc         | 1 +
+ src/channelwidget.cc      | 1 +
+ src/devicewidget.cc       | 1 +
+ src/mainwindow.cc         | 6 ++++++
+ src/rolewidget.cc         | 1 +
+ src/sinkinputwidget.cc    | 1 +
+ src/sinkwidget.cc         | 1 +
+ src/sourceoutputwidget.cc | 1 +
+ src/sourcewidget.cc       | 1 +
+ src/streamwidget.cc       | 1 +
+ 10 files changed, 15 insertions(+)
+
+diff --git a/src/cardwidget.cc b/src/cardwidget.cc
+index c79ac6c..28c558d 100644
+--- a/src/cardwidget.cc
++++ b/src/cardwidget.cc
+@@ -45,6 +45,7 @@ CardWidget* CardWidget::create() {
+     CardWidget* w;
+     Glib::RefPtr<Gtk::Builder> x = Gtk::Builder::create_from_file(GLADE_FILE, "cardWidget");
+     x->get_widget_derived("cardWidget", w);
++    w->reference();
+     return w;
+ }
+ 
+diff --git a/src/channelwidget.cc b/src/channelwidget.cc
+index 6f59de2..fe94c11 100644
+--- a/src/channelwidget.cc
++++ b/src/channelwidget.cc
+@@ -53,6 +53,7 @@ ChannelWidget* ChannelWidget::create() {
+     x->add_from_file(GLADE_FILE, "adjustment1");
+     x->add_from_file(GLADE_FILE, "channelWidget");
+     x->get_widget_derived("channelWidget", w);
++    w->reference();
+     return w;
+ }
+ 
+diff --git a/src/devicewidget.cc b/src/devicewidget.cc
+index 1c34ea6..2fb8095 100644
+--- a/src/devicewidget.cc
++++ b/src/devicewidget.cc
+@@ -84,6 +84,7 @@ void DeviceWidget::setChannelMap(const pa_channel_map &m, bool can_decibel) {
+         snprintf(text, sizeof(text), "<b>%s</b>", pa_channel_position_to_pretty_string(m.map[i]));
+         cw->channelLabel->set_markup(text);
+         channelsVBox->pack_start(*cw, false, false, 0);
++        cw->unreference();
+     }
+     channelWidgets[m.channels-1]->last = true;
+ 
+diff --git a/src/mainwindow.cc b/src/mainwindow.cc
+index 741af94..a67b15c 100644
+--- a/src/mainwindow.cc
++++ b/src/mainwindow.cc
+@@ -298,6 +298,7 @@ void MainWindow::updateCard(const pa_card_info &info) {
+     else {
+         cardWidgets[info.index] = w = CardWidget::create();
+         cardsVBox->pack_start(*w, false, false, 0);
++        w->unreference();
+         w->index = info.index;
+         is_new = true;
+     }
+@@ -414,6 +415,7 @@ bool MainWindow::updateSink(const pa_sink_info &info) {
+         sinkWidgets[info.index] = w = SinkWidget::create(this);
+         w->setChannelMap(info.channel_map, !!(info.flags & PA_SINK_DECIBEL_VOLUME));
+         sinksVBox->pack_start(*w, false, false, 0);
++        w->unreference();
+         w->index = info.index;
+         w->monitor_index = info.monitor_source;
+         is_new = true;
+@@ -572,6 +574,7 @@ void MainWindow::updateSource(const pa_source_info &info) {
+         sourceWidgets[info.index] = w = SourceWidget::create(this);
+         w->setChannelMap(info.channel_map, !!(info.flags & PA_SOURCE_DECIBEL_VOLUME));
+         sourcesVBox->pack_start(*w, false, false, 0);
++        w->unreference();
+         w->index = info.index;
+         is_new = true;
+ 
+@@ -687,6 +690,7 @@ void MainWindow::updateSinkInput(const pa_sink_input_info &info) {
+         sinkInputWidgets[info.index] = w = SinkInputWidget::create(this);
+         w->setChannelMap(info.channel_map, true);
+         streamsVBox->pack_start(*w, false, false, 0);
++        w->unreference();
+         w->index = info.index;
+         w->clientIndex = info.client;
+         is_new = true;
+@@ -742,6 +746,7 @@ void MainWindow::updateSourceOutput(const pa_source_output_info &info) {
+         w->setChannelMap(info.channel_map, true);
+ #endif
+         recsVBox->pack_start(*w, false, false, 0);
++        w->unreference();
+         w->index = info.index;
+         w->clientIndex = info.client;
+         is_new = true;
+@@ -835,6 +840,7 @@ bool MainWindow::createEventRoleWidget() {
+ 
+     eventRoleWidget = RoleWidget::create();
+     streamsVBox->pack_start(*eventRoleWidget, false, false, 0);
++    eventRoleWidget->unreference();
+     eventRoleWidget->role = "sink-input-by-media-role:event";
+     eventRoleWidget->setChannelMap(cm, true);
+ 
+diff --git a/src/rolewidget.cc b/src/rolewidget.cc
+index fd3196c..db07f92 100644
+--- a/src/rolewidget.cc
++++ b/src/rolewidget.cc
+@@ -40,6 +40,7 @@ RoleWidget* RoleWidget::create() {
+     RoleWidget* w;
+     Glib::RefPtr<Gtk::Builder> x = Gtk::Builder::create_from_file(GLADE_FILE, "streamWidget");
+     x->get_widget_derived("streamWidget", w);
++    w->reference();
+     return w;
+ }
+ 
+diff --git a/src/sinkinputwidget.cc b/src/sinkinputwidget.cc
+index b88b718..5a0ba39 100644
+--- a/src/sinkinputwidget.cc
++++ b/src/sinkinputwidget.cc
+@@ -43,6 +43,7 @@ SinkInputWidget* SinkInputWidget::create(MainWindow* mainWindow) {
+     Glib::RefPtr<Gtk::Builder> x = Gtk::Builder::create_from_file(GLADE_FILE, "streamWidget");
+     x->get_widget_derived("streamWidget", w);
+     w->init(mainWindow);
++    w->reference();
+     return w;
+ }
+ 
+diff --git a/src/sinkwidget.cc b/src/sinkwidget.cc
+index 1726550..adfa2d9 100644
+--- a/src/sinkwidget.cc
++++ b/src/sinkwidget.cc
+@@ -70,6 +70,7 @@ SinkWidget* SinkWidget::create(MainWindow* mainWindow) {
+     Glib::RefPtr<Gtk::Builder> x = Gtk::Builder::create_from_file(GLADE_FILE, "deviceWidget");
+     x->get_widget_derived("deviceWidget", w);
+     w->init(mainWindow, "sink");
++    w->reference();
+     return w;
+ }
+ 
+diff --git a/src/sourceoutputwidget.cc b/src/sourceoutputwidget.cc
+index 827c5a8..4d915b0 100644
+--- a/src/sourceoutputwidget.cc
++++ b/src/sourceoutputwidget.cc
+@@ -49,6 +49,7 @@ SourceOutputWidget* SourceOutputWidget::create(MainWindow* mainWindow) {
+     Glib::RefPtr<Gtk::Builder> x = Gtk::Builder::create_from_file(GLADE_FILE, "streamWidget");
+     x->get_widget_derived("streamWidget", w);
+     w->init(mainWindow);
++    w->reference();
+     return w;
+ }
+ 
+diff --git a/src/sourcewidget.cc b/src/sourcewidget.cc
+index 5e4ecf0..fde5333 100644
+--- a/src/sourcewidget.cc
++++ b/src/sourcewidget.cc
+@@ -35,6 +35,7 @@ SourceWidget* SourceWidget::create(MainWindow* mainWindow) {
+     Glib::RefPtr<Gtk::Builder> x = Gtk::Builder::create_from_file(GLADE_FILE, "deviceWidget");
+     x->get_widget_derived("deviceWidget", w);
+     w->init(mainWindow, "source");
++    w->reference();
+     return w;
+ }
+ 
+diff --git a/src/streamwidget.cc b/src/streamwidget.cc
+index 94363ec..e602cce 100644
+--- a/src/streamwidget.cc
++++ b/src/streamwidget.cc
+@@ -77,6 +77,7 @@ void StreamWidget::setChannelMap(const pa_channel_map &m, bool can_decibel) {
+         snprintf(text, sizeof(text), "<b>%s</b>", pa_channel_position_to_pretty_string(m.map[i]));
+         cw->channelLabel->set_markup(text);
+         channelsVBox->pack_start(*cw, false, false, 0);
++        cw->unreference();
+     }
+     channelWidgets[m.channels-1]->last = true;
+     channelWidgets[m.channels-1]->setBaseVolume(PA_VOLUME_NORM);
diff --git a/debian/patches/0004-Do-not-instantiate-cardwidget-devicewidget-and-rolew.patch b/debian/patches/0004-Do-not-instantiate-cardwidget-devicewidget-and-rolew.patch
new file mode 100644
index 0000000..51f5101
--- /dev/null
+++ b/debian/patches/0004-Do-not-instantiate-cardwidget-devicewidget-and-rolew.patch
@@ -0,0 +1,76 @@
+From: Hans de Goede <hdegoede at redhat.com>
+Date: Fri, 29 Aug 2014 09:42:04 +0200
+Subject: Do not instantiate cardwidget,
+ devicewidget and rolewidget with a type of EventBox
+
+RoleWidget::create contains:
+    x->get_widget_derived("streamWidget", w);
+
+But streamWidget is defined as following in the glade file:
+<object class="GtkEventBox" id="streamWidget">
+
+Where as RoleWidget is derived from [Minimal]StreamWidget, which is derived
+from Gtk::VBox, so this is clearly wrong.
+
+Adding:
+printf("rolewidget type: %s\n", g_type_name(G_TYPE_FROM_INSTANCE(w->gobj())));
+for debugging shows that this really leads to RoleWidget being instantiated
+as an EventBox (yet things still work due to sheer luck).
+
+This commit fixes this, by putting the streamWidget id at the right level of
+the hierarchy in the glade file (and likewise for cardWidget and deviceWidget).
+
+Signed-off-by: Hans de Goede <hdegoede at redhat.com>
+---
+ src/pavucontrol.glade | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/src/pavucontrol.glade b/src/pavucontrol.glade
+index 6defb3d..fd43217 100644
+--- a/src/pavucontrol.glade
++++ b/src/pavucontrol.glade
+@@ -12,12 +12,12 @@
+     <property name="can_focus">False</property>
+     <property name="title" translatable="yes">window1</property>
+     <child>
+-      <object class="GtkEventBox" id="cardWidget">
++      <object class="GtkEventBox" id="cardWidgetBox">
+         <property name="visible">True</property>
+         <property name="can_focus">False</property>
+         <property name="visible_window">False</property>
+         <child>
+-          <object class="GtkVBox" id="cardWidget1">
++          <object class="GtkVBox" id="cardWidget">
+             <property name="visible">True</property>
+             <property name="can_focus">False</property>
+             <child>
+@@ -202,12 +202,12 @@
+     <property name="can_focus">False</property>
+     <property name="title" translatable="yes">window1</property>
+     <child>
+-      <object class="GtkEventBox" id="deviceWidget">
++      <object class="GtkEventBox" id="deviceWidgetBox">
+         <property name="visible">True</property>
+         <property name="can_focus">False</property>
+         <property name="visible_window">False</property>
+         <child>
+-          <object class="GtkVBox" id="streamWidget2">
++          <object class="GtkVBox" id="deviceWidget">
+             <property name="visible">True</property>
+             <property name="can_focus">False</property>
+             <child>
+@@ -1316,12 +1316,12 @@
+     <property name="can_focus">False</property>
+     <property name="title" translatable="yes">window1</property>
+     <child>
+-      <object class="GtkEventBox" id="streamWidget">
++      <object class="GtkEventBox" id="streamWidgetBox">
+         <property name="visible">True</property>
+         <property name="can_focus">False</property>
+         <property name="visible_window">False</property>
+         <child>
+-          <object class="GtkVBox" id="streamWidget2">
++          <object class="GtkVBox" id="streamWidget">
+             <property name="visible">True</property>
+             <property name="can_focus">False</property>
+             <child>
diff --git a/debian/patches/series b/debian/patches/series
index 23e6a91..b20ca94 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -1,2 +1,4 @@
 0001-Don-t-crash-if-pa_stream_peek-returns-NULL.patch
 0002-README-updating.patch
+0003-Reference-the-widget-before-returning-it-from-create.patch
+0004-Do-not-instantiate-cardwidget-devicewidget-and-rolew.patch

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