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desktop: add new view abstraction with xdg shell implementation

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Jente Hidskes 2020-06-30 23:18:50 +02:00
parent 248f4847df
commit de61d06406
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#ifndef CG_VIEW_H
#define CG_VIEW_H
#include <stdbool.h>
#include <wayland-server-core.h>
#include <wlr/types/wlr_surface.h>
#include "output.h"
enum cg_view_type {
CAGE_XDG_SHELL_VIEW,
};
struct cg_view {
enum cg_view_type type;
const struct cg_view_impl *impl;
struct wl_list link; // cg_output::views
struct wlr_surface *wlr_surface;
struct cg_output *output;
struct {
/**
* Proxy wlr_surface's map signal to the compositor.
* Note that cg_view has already taken care of setting up the
* view; only the compositor-specific handling such as focus
* changing need to be implemented.
*/
struct wl_signal map;
/**
* Proxy wlr_surface's unmap signal to the compositor.
* Note that cg_view will take care of unmapping the view; only
* the compositor-specific handling such as focus changing need
* to be implemented.
*/
struct wl_signal unmap;
} events;
};
struct cg_view_impl {
/**
* Get the width and height of a view.
*/
void (*get_geometry)(struct cg_view *view, int *width_out, int *height_out);
/**
* Maximize the given view on its output.
*/
void (*maximize)(struct cg_view *view, int output_width, int output_height);
/**
* A primary view is a main application window. That is, it is a toplevel window
* that has no parent. For example, a dialog window is not a primary view, nor is
* e.g. a toolbox window.
*
* Cage uses this heuristic to decide which views to maximize on their outputs
* and which views to display as dialogs, with the caveat that dialogs that extend
* their output are maximized regardless.
*/
bool (*is_primary)(struct cg_view *view);
/**
* Get a view's title.
*/
char *(*get_title)(struct cg_view *view);
/**
* Execute `iterator` on every surface belonging to this view.
*/
void (*for_each_surface)(struct cg_view *view, wlr_surface_iterator_func_t iterator, void *user_data);
/**
* Activate a view.
*/
void (*activate)(struct cg_view *view, bool activate);
};
bool cage_view_is_primary(struct cg_view *view);
void cage_view_position(struct cg_view *view);
void cage_view_for_each_surface(struct cg_view *view, wlr_surface_iterator_func_t iterator, void *user_data);
char *cage_view_get_title(struct cg_view *view);
void cage_view_activate(struct cg_view *view, bool activate);
bool cage_view_is_mapped(struct cg_view *view);
void cage_view_unmap(struct cg_view *view);
void cage_view_map(struct cg_view *view, struct wlr_surface *surface);
void cage_view_fini(struct cg_view *view);
void cage_view_init(struct cg_view *view, enum cg_view_type type, const struct cg_view_impl *impl,
struct cg_output *output);
#endif