i3 - improved tiling WM

Bugfix: Render popups during global fullscreen

Patch status: superseded

Patch by Mats

Long description:

fixes #1393

To apply this patch, use:
curl http://cr.i3wm.org/patch/696/raw.patch | git am

b/src/render.c

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@@ -116,6 +116,31 @@ static void render_l_output(Con *con) {
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 }
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 /*
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+ * Recursively renders all floating containers that are (indirectly) transient
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+ * for and on the same workspace as the given container.
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+ *
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+ */
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+static void render_transient_cons(Con *con) {
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+    Con *workspace = con_get_workspace(con);
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+    Con *child;
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+    TAILQ_FOREACH(child, &(workspace->floating_head), floating_windows) {
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+        Con *floating_child = con_descend_focused(child);
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+
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+        if (floating_child == NULL ||
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+            floating_child == con ||
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+            floating_child->window == NULL ||
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+            floating_child->window->transient_for != con->window->id)
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+            continue;
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+
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+        DLOG("window 0x%08x transient for 0x%08x\n", floating_child->window->id, con->window->id);
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+        x_raise_con(child);
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+        render_con(child, false);
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+
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+        render_transient_cons(floating_child);
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+    }
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+}
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+
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+/*
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  * "Renders" the given container (and its children), meaning that all rects are
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  * updated correctly. Note that this function does not call any xcb_*
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  * functions, so the changes are completely done in memory only (and
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@@ -210,6 +235,10 @@ void render_con(Con *con, bool render_fullscreen) {
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         fullscreen->rect = rect;
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         x_raise_con(fullscreen);
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         render_con(fullscreen, true);
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+        if (con->type == CT_ROOT && fullscreen->window != NULL) {
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+            DLOG("rendering transient containers for global fullscreen 0x%08x\n", fullscreen->window->id);
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+            render_transient_cons(fullscreen);
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+        }
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         return;
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     }
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