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| author | estade@chromium.org <estade@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2009-04-10 19:25:17 +0000 |
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| committer | estade@chromium.org <estade@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2009-04-10 19:25:17 +0000 |
| commit | 6e69f4e8d72b4b048f896d517180146696c1f15e (patch) | |
| tree | b8b054aa18fef943370a910ed5bea3157ac29e1e /chrome/browser/gtk/link_button_gtk.cc | |
| parent | 8a2986ca11e6865a85f9645fdf4941c9831100c0 (diff) | |
| download | chromium_src-6e69f4e8d72b4b048f896d517180146696c1f15e.zip chromium_src-6e69f4e8d72b4b048f896d517180146696c1f15e.tar.gz chromium_src-6e69f4e8d72b4b048f896d517180146696c1f15e.tar.bz2 | |
Factor out MakeLinkButton into its own class.
This also gets rid of the event box, which means we can stick it in widgets that are custom painted.
Review URL: http://codereview.chromium.org/66023
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@13525 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'chrome/browser/gtk/link_button_gtk.cc')
| -rw-r--r-- | chrome/browser/gtk/link_button_gtk.cc | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/chrome/browser/gtk/link_button_gtk.cc b/chrome/browser/gtk/link_button_gtk.cc new file mode 100644 index 0000000..4b1d010 --- /dev/null +++ b/chrome/browser/gtk/link_button_gtk.cc @@ -0,0 +1,65 @@ +// Copyright (c) 2009 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "chrome/browser/gtk/link_button_gtk.h" + +static const char* kLinkMarkup = "<u><span color=\"blue\">%s</span></u>"; + +LinkButtonGtk::LinkButtonGtk(const char* text) + : hand_cursor_(gdk_cursor_new(GDK_HAND2)) { + // We put a label in a button so we can connect to the click event. We don't + // let the button draw itself; catch all expose events to the button and pass + // them through to the label. + // TODO(estade): the link should turn red during the user's click. + GtkWidget* label = gtk_label_new(NULL); + char* markup = g_markup_printf_escaped(kLinkMarkup, text); + gtk_label_set_markup(GTK_LABEL(label), markup); + g_free(markup); + + widget_.Own(gtk_button_new()); + gtk_widget_set_app_paintable(widget_.get(), TRUE); + g_signal_connect(widget_.get(), "expose-event", + G_CALLBACK(OnExpose), NULL); + // We connect to these signals so we can set the cursor appropriately. We + // could give the link button its own GdkWindow (e.g. by placing it in a + // GtkEventBox), but that would wreak havok with painting of the parent + // widget. We can't use the enter- and leave- notify events as they operate + // on the widget's GdkWindow, and |label| nor |button| has its own GdkWindow. + g_signal_connect(widget_.get(), "enter", + G_CALLBACK(OnEnter), this); + g_signal_connect(widget_.get(), "leave", + G_CALLBACK(OnLeave), this); + gtk_container_add(GTK_CONTAINER(widget_.get()), label); +} + +LinkButtonGtk::~LinkButtonGtk() { + gdk_cursor_unref(hand_cursor_); + widget_.Destroy(); +} + +// static +gboolean LinkButtonGtk::OnEnter(GtkWidget* widget, + LinkButtonGtk* link_button) { + gdk_window_set_cursor(widget->window, link_button->hand_cursor_); + return FALSE; +} + +// static +gboolean LinkButtonGtk::OnLeave(GtkWidget* widget, + LinkButtonGtk* link_button) { + gdk_window_set_cursor(widget->window, NULL); + return FALSE; +} + +// static +gboolean LinkButtonGtk::OnExpose(GtkWidget* widget, + GdkEventExpose* event, + gpointer user_data) { + // Draw the link inside the button. + gtk_container_propagate_expose(GTK_CONTAINER(widget), + gtk_bin_get_child(GTK_BIN(widget)), + event); + // Don't let the button draw itself, ever. + return TRUE; +} |