147 lines
3.4 KiB
Vala
147 lines
3.4 KiB
Vala
using Gtk;
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[GtkTemplate (ui = "/com/github/bleakgrey/tootle/ui/views/base.ui")]
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public class Tootle.Views.Base : Box {
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public static string STATUS_EMPTY = _("Nothing to see here");
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public static string STATUS_LOADING = " ";
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public string? icon { get; set; default = null; }
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public string label { get; set; default = ""; }
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public bool needs_attention { get; set; default = false; }
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public bool current { get; set; default = false; }
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public SimpleActionGroup? actions { get; set; }
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public Container content { get; set; }
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[GtkChild]
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protected Hdy.HeaderBar header;
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[GtkChild]
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protected Button back_button;
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[GtkChild]
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protected ScrolledWindow scrolled;
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[GtkChild]
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protected Box view;
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[GtkChild]
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protected Hdy.Clamp clamp;
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[GtkChild]
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protected Box column_view;
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[GtkChild]
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protected Stack states;
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[GtkChild]
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protected Box content_box;
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[GtkChild]
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protected ListBox content_list;
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[GtkChild]
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protected Button status_button;
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[GtkChild]
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Stack status_stack;
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[GtkChild]
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Label status_message_label;
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public string state { get; set; default = "status"; }
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public string status_message { get; set; default = STATUS_EMPTY; }
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public bool empty {
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get {
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return content.get_children ().length () <= 0;
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}
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}
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construct {
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bind_property ("label", header, "title", BindingFlags.SYNC_CREATE);
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content = content_list;
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status_button.label = _("Reload");
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bind_property ("state", states, "visible-child-name", BindingFlags.SYNC_CREATE);
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scrolled.edge_reached.connect (pos => {
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if (pos == PositionType.BOTTOM)
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on_bottom_reached ();
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});
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content.remove.connect (() => on_content_changed ());
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content_list.remove.connect (() => on_content_changed ());
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content_list.row_activated.connect (on_content_item_activated);
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notify["status-message"].connect (() => {
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status_message_label.label = @"<span size='large'>$status_message</span>";
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status_stack.visible_child_name = status_message == STATUS_LOADING ? "spinner" : "message";
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});
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notify["current"].connect (() => {
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if (current)
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on_shown ();
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else
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on_hidden ();
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});
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scrolled.get_style_context ().add_class (Dialogs.MainWindow.ZOOM_CLASS);
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build_header ();
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}
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public virtual void build_header () {}
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public virtual void clear (){
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content.forall (w => {
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w.destroy ();
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});
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state = "status";
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}
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public virtual void on_bottom_reached () {}
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public virtual void on_shown () {
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if (actions != null)
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window.insert_action_group ("view", actions);
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}
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public virtual void on_hidden () {
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if (actions != null)
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window.insert_action_group ("view", null);
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}
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public virtual void on_content_changed () {
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if (empty) {
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status_message = STATUS_EMPTY;
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state = "status";
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}
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else {
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state = "content";
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}
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check_resize ();
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}
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public virtual void on_error (int32 code, string reason) {
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status_message = reason;
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status_button.visible = true;
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status_button.sensitive = true;
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state = "status";
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}
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[GtkCallback]
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protected void on_resized () {
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Allocation alloc;
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get_allocation (out alloc);
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var target_w = clamp.maximum_size;
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var view_w = alloc.width;
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var ctx = view.get_style_context ();
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if (view_w <= target_w && ctx.has_class ("padded"))
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ctx.remove_class ("padded");
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if (view_w > target_w && !ctx.has_class ("padded"))
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ctx.add_class ("padded");
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}
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public virtual void on_content_item_activated (ListBoxRow row) {
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Signal.emit_by_name (row, "open");
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}
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[GtkCallback]
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void on_close () {
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window.back ();
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}
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}
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