browser-plugin: add clipboard copy support

Only supporting copy, evince doesn't support editing (at least the API
is lacking cut and paste)

Using property access workaround.

Example:
    if (plugin.canCopy) {
        plugin.canCopy = 42;	(workaround) copy selection to clipboard
    }

1 files changed, 25 insertions, 1 deletions

diff --git a/browser-plugin/plugin.cpp b/browser-plugin/plugin.cpp
index 7d79100..88893c8 100644
--- a/browser-plugin/plugin.cpp
+++ b/browser-plugin/plugin.cpp
@@ -27,7 +27,8 @@ Plugin::Plugin (NPP instance) : mInstance (instance),
 				mScriptableObject (0),
 				mWindow (0),
 				mLoadJob (0),
-				mTitle (0)
+				mTitle (0),
+				mHasSelection (false)
 {
 	mScrolledWindow = gtk_scrolled_window_new (NULL, NULL);
 
@@ -36,6 +37,10 @@ Plugin::Plugin (NPP instance) : mInstance (instance),
 			  "notify::sizing-mode",
 			  G_CALLBACK (Plugin::SizingModeCallback),
 			  reinterpret_cast<void*>(this));
+	g_signal_connect (G_OBJECT (mView),
+			  "notify::has-selection",
+			  G_CALLBACK (Plugin::HasSelectionCallback),
+			  reinterpret_cast<void*>(this));
 
 	g_signal_connect (G_OBJECT (mView),
 			  "external-link",
@@ -103,6 +108,12 @@ Plugin::FindPrevious (const char *text)
 }
 
 void
+Plugin::CopyClipboard ()
+{
+	ev_view_copy (EV_VIEW (mView));
+}
+
+void
 Plugin::SetWindow (GdkNativeWindow window)
 {
 	if (mWindow != 0) {
@@ -226,6 +237,19 @@ Plugin::SizingModeCallback (EvView *view, GParamSpec *pspec, gpointer data)
 }
 
 void
+Plugin::HasSelectionCallback (EvView *view, GParamSpec *pspec, gpointer data)
+{
+	Plugin *plugin = reinterpret_cast<Plugin*> (data);
+
+	gboolean has_selection = ev_view_get_has_selection (view);
+
+	if (has_selection != plugin->mHasSelection) {
+		plugin->mHasSelection = has_selection;
+		plugin->CallBrowser ("onClipboardChanged");
+	}
+}
+
+void
 Plugin::ExternalLinkCallback (EvView *view, EvLinkAction *action, gpointer data)
 {
 	Plugin *plugin = reinterpret_cast<Plugin*> (data);