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[gnome-shell-extensions] screenshot-window-sizer: New extension

commit 1d5ab0f0de55ab2a8c954feb1355ad30797d8177
Author: Florian Müllner <fmuellner gnome org>
Date:   Sat Sep 6 22:44:44 2014 +0200

    screenshot-window-sizer: New extension
    
    Originally from hughsie's github[0], but way too useful to leave
    in a 3rd party repo :-)
    
    [0] https://github.com/hughsie/gnome-shell-extension-screenshot-window-sizer
    
    https://bugzilla.gnome.org/show_bug.cgi?id=736470

 configure.ac                                       |    5 +-
 extensions/screenshot-window-sizer/Makefile.am     |    4 +
 extensions/screenshot-window-sizer/extension.js    |  147 ++++++++++++++++++++
 .../screenshot-window-sizer/metadata.json.in       |   10 ++
 ...tensions.screenshot-window-sizer.gschema.xml.in |   10 ++
 extensions/screenshot-window-sizer/stylesheet.css  |    8 +
 po/POTFILES.in                                     |    1 +
 7 files changed, 183 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 53d1f87..4283bd9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -28,7 +28,7 @@ AC_SUBST([SHELL_VERSION])
 
 dnl keep this in alphabetic order
 CLASSIC_EXTENSIONS="apps-menu places-menu alternate-tab launch-new-instance window-list"
-DEFAULT_EXTENSIONS="$CLASSIC_EXTENSIONS drive-menu windowsNavigator workspace-indicator"
+DEFAULT_EXTENSIONS="$CLASSIC_EXTENSIONS drive-menu screenshot-window-sizer windowsNavigator 
workspace-indicator"
 ALL_EXTENSIONS="$DEFAULT_EXTENSIONS auto-move-windows example native-window-placement systemMonitor 
user-theme"
 AC_SUBST(CLASSIC_EXTENSIONS, [$CLASSIC_EXTENSIONS])
 AC_SUBST(ALL_EXTENSIONS, [$ALL_EXTENSIONS])
@@ -66,7 +66,7 @@ for e in $enable_extensions; do
                                        [AC_MSG_WARN([libgtop-2.0 not found, disabling systemMonitor])])
                        ;;
 dnl            keep this in alphabetic order
-               
alternate-tab|apps-menu|auto-move-windows|drive-menu|example|launch-new-instance|native-window-placement|places-menu|user-theme|window-list|windowsNavigator|workspace-indicator)
+               
alternate-tab|apps-menu|auto-move-windows|drive-menu|example|launch-new-instance|native-window-placement|places-menu|screenshot-window-sizer|user-theme|window-list|windowsNavigator|workspace-indicator)
                        ENABLED_EXTENSIONS="$ENABLED_EXTENSIONS $e"
                        ;;
                *)
@@ -87,6 +87,7 @@ AC_CONFIG_FILES([
   extensions/launch-new-instance/Makefile
   extensions/native-window-placement/Makefile
   extensions/places-menu/Makefile
+  extensions/screenshot-window-sizer/Makefile
   extensions/systemMonitor/Makefile
   extensions/user-theme/Makefile
   extensions/window-list/Makefile
diff --git a/extensions/screenshot-window-sizer/Makefile.am b/extensions/screenshot-window-sizer/Makefile.am
new file mode 100644
index 0000000..a3e1dfd
--- /dev/null
+++ b/extensions/screenshot-window-sizer/Makefile.am
@@ -0,0 +1,4 @@
+EXTENSION_ID = screenshot-window-sizer
+
+include ../../extension.mk
+include ../../settings.mk
diff --git a/extensions/screenshot-window-sizer/extension.js b/extensions/screenshot-window-sizer/extension.js
new file mode 100644
index 0000000..1e573ea
--- /dev/null
+++ b/extensions/screenshot-window-sizer/extension.js
@@ -0,0 +1,147 @@
+/* Screenshot Window Sizer for Gnome Shell
+ *
+ * Copyright (c) 2013 Owen Taylor <otaylor redhat com>
+ * Copyright (c) 2013 Richard Hughes <richard hughsie com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+const Gio = imports.gi.Gio;
+const Meta = imports.gi.Meta;
+const Shell = imports.gi.Shell;
+const St = imports.gi.St;
+
+const Main = imports.ui.main;
+const Tweener = imports.ui.tweener;
+
+const ExtensionUtils = imports.misc.extensionUtils;
+const Me = ExtensionUtils.getCurrentExtension();
+const Convenience = Me.imports.convenience;
+
+const MESSAGE_FADE_TIME = 2;
+
+let text, button;
+
+function hideMessage() {
+    text.destroy();
+    text = null;
+}
+
+function flashMessage(message) {
+    if (!text) {
+        text = new St.Label({ style_class: 'screenshot-sizer-message' });
+        Main.uiGroup.add_actor(text);
+    }
+
+    Tweener.removeTweens(text);
+    text.text = message;
+
+    text.opacity = 255;
+
+    let monitor = Main.layoutManager.primaryMonitor;
+    text.set_position(monitor.x + Math.floor(monitor.width / 2 - text.width / 2),
+                      monitor.y + Math.floor(monitor.height / 2 - text.height / 2));
+
+    Tweener.addTween(text,
+                     { opacity: 0,
+                       time: MESSAGE_FADE_TIME,
+                       transition: 'easeOutQuad',
+                       onComplete: hideMessage });
+}
+
+let SIZES = [
+    [624, 351],
+    [800, 450],
+    [1024, 576],
+    [1200, 675],
+    [1600, 900]
+];
+
+function cycleScreenshotSizes(display, screen, window, binding) {
+    // Probably this isn't useful with 5 sizes, but you can decrease instead
+    // of increase by holding down shift.
+    let modifiers = binding.get_modifiers();
+    let backwards = (modifiers & Meta.VirtualModifier.SHIFT_MASK) != 0;
+
+    // Unmaximize first
+    if (window.maximized_horizontally || window.maximizedVertically)
+        window.unmaximize(Meta.MaximizeFlags.HORIZONTAL | Meta.MaximizeFlags.VERTICAL);
+
+    let workArea = window.get_work_area_current_monitor();
+    let outerRect = window.get_outer_rect();
+
+    // Find the nearest 16:9 size for the current window size
+    let nearestIndex;
+    let nearestError;
+
+    for (let i = 0; i < SIZES.length; i++) {
+        let [width, height] = SIZES[i];
+
+        // ignore sizes bigger than the workArea
+        if (width > workArea.width || height > workArea.height)
+            continue;
+
+        // get the best initial window size
+        let error = Math.abs(width - outerRect.width) + Math.abs(height - outerRect.height);
+        if (nearestIndex == null || error < nearestError) {
+            nearestIndex = i;
+            nearestError = error;
+        }
+    }
+
+    // get the next size up or down from ideal
+    let newIndex = (nearestIndex + (backwards ? -1 : 1)) % SIZES.length;
+    let newWidth, newHeight;
+    [newWidth, newHeight] = SIZES[newIndex];
+    if (newWidth > workArea.width || newHeight > workArea.height)
+        [newWidth, newHeight] = SIZES[0];
+
+    // Push the window onscreen if it would be resized offscreen
+    let newX = outerRect.x;
+    let newY = outerRect.y;
+    if (newX + newWidth > workArea.x + workArea.width)
+        newX = Math.max(workArea.x + workArea.width - newWidth);
+    if (newY + newHeight > workArea.y + workArea.height)
+        newY = Math.max(workArea.y + workArea.height - newHeight);
+
+    window.move_resize_frame(true, newX, newY, newWidth, newHeight);
+
+    let newOuterRect = window.get_outer_rect();
+    let message = newOuterRect.width + 'x' + newOuterRect.height;
+
+    // The new size might have been constrained by geometry hints (e.g. for
+    // a terminal) - in that case, include the actual ratio to the message
+    // we flash
+    let actualNumerator = (newOuterRect.width / newOuterRect.height) * 9;
+    if (Math.abs(actualNumerator - 16) > 0.01)
+        message += ' (%.2f:9)'.format(actualNumerator);
+
+    flashMessage(message);
+}
+
+function init() {
+}
+
+function enable() {
+    Main.wm.addKeybinding('cycle-screenshot-sizes',
+                          Convenience.getSettings(),
+                          Meta.KeyBindingFlags.PER_WINDOW | Meta.KeyBindingFlags.REVERSES,
+                          Shell.KeyBindingMode.NORMAL,
+                          cycleScreenshotSizes);
+}
+
+function disable() {
+    Main.wm.removeKeybinding('cycle-screenshot-sizes');
+}
diff --git a/extensions/screenshot-window-sizer/metadata.json.in 
b/extensions/screenshot-window-sizer/metadata.json.in
new file mode 100644
index 0000000..185e63f
--- /dev/null
+++ b/extensions/screenshot-window-sizer/metadata.json.in
@@ -0,0 +1,10 @@
+{
+"extension-id": "@extension_id@",
+"uuid": "@uuid@",
+"settings-schema": "@gschemaname@",
+"gettext-domain": "@gettext_domain@",
+"name": "Screenshot Window Sizer",
+"description": "Resize windows for GNOME Software screenshots",
+"shell-version": [ "@shell_current@" ],
+"url": "@url@"
+}
diff --git 
a/extensions/screenshot-window-sizer/org.gnome.shell.extensions.screenshot-window-sizer.gschema.xml.in 
b/extensions/screenshot-window-sizer/org.gnome.shell.extensions.screenshot-window-sizer.gschema.xml.in
new file mode 100644
index 0000000..f1739a9
--- /dev/null
+++ b/extensions/screenshot-window-sizer/org.gnome.shell.extensions.screenshot-window-sizer.gschema.xml.in
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<schemalist>
+  <schema id="org.gnome.shell.extensions.screenshot-window-sizer"
+          path="/org/gnome/shell/extensions/screenshot-window-sizer/">
+    <key type="as" name="cycle-screenshot-sizes">
+      <default><![CDATA[['<Alt><Control>s']]]></default>
+      <_summary>Cycle Screenshot Sizes</_summary>
+    </key>
+  </schema>
+</schemalist>
diff --git a/extensions/screenshot-window-sizer/stylesheet.css 
b/extensions/screenshot-window-sizer/stylesheet.css
new file mode 100644
index 0000000..b2edab2
--- /dev/null
+++ b/extensions/screenshot-window-sizer/stylesheet.css
@@ -0,0 +1,8 @@
+.screenshot-sizer-message {
+    font-size: 36px;
+    font-weight: bold;
+    color: #ffffff;
+    background-color: rgba(10,10,10,0.7);
+    border-radius: 5px;
+    padding: .5em;
+}
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 89bd3ee..1756bd1 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -15,6 +15,7 @@ extensions/native-window-placement/extension.js
 extensions/native-window-placement/org.gnome.shell.extensions.native-window-placement.gschema.xml.in
 extensions/places-menu/extension.js
 extensions/places-menu/placeDisplay.js
+extensions/screenshot-window-sizer/org.gnome.shell.extensions.screenshot-window-sizer.gschema.xml.in
 extensions/systemMonitor/extension.js
 extensions/user-theme/extension.js
 extensions/user-theme/org.gnome.shell.extensions.user-theme.gschema.xml.in
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