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terminal session: propagate resize events

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The new 'Terminal_session::size_changed_sigh' RPC function registers a
signal handler that is triggered each time when the terminal size
changes. It enables the client to adjust itself to the new size by
subsequently calling the 'size' RPC function. Of all terminal servers,
only the graphical terminal triggers this signal.
This commit is contained in:
Norman Feske
2018-02-07 17:03:19 +01:00
parent 96a068f90a
commit 8aa1e349fc
12 changed files with 134 additions and 66 deletions
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14
repos/dde_linux/src/server/usb_terminal/main.cc
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@ -252,18 +252,20 @@ class Terminal::Session_component : public Rpc_object<Session, Session_component
_driver(driver)
{ }
void read_avail_sigh(Signal_context_capability sigh)
void read_avail_sigh(Signal_context_capability sigh) override
{
_driver.read_avail_sigh(sigh);
}
void connected_sigh(Signal_context_capability sigh)
void connected_sigh(Signal_context_capability sigh) override
{
_driver.connected_sigh(sigh);
}
Size size() { return Size(0, 0); }
bool avail() { return _driver.avail(); }
void size_changed_sigh(Signal_context_capability) override { }
Size size() override { return Size(0, 0); }
bool avail() override { return _driver.avail(); }
size_t _read(size_t dst_len)
{
@ -289,8 +291,8 @@ class Terminal::Session_component : public Rpc_object<Session, Session_component
Dataspace_capability _dataspace() { return _io_buffer.cap(); }
size_t read(void *buf, size_t) { return 0; }
size_t write(void const *buf, size_t) { return 0; }
size_t read(void *buf, size_t) override { return 0; }
size_t write(void const *buf, size_t) override { return 0; }
};