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#include "launcher.h"
#include <vector>
#include <string>
#include <fstream>
#include <dirent.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include <errno.h>
#include <wait.h>
#include "logger.h"
using namespace std;
Launcher::Launcher(AppletWindowParams params):Applet(params), margin_side(0), margin_top(0), margin_bottom(0), app_width(200), app_height(200){
}
static bool FileList(const std::string& path, const std::string& ext, vector<string>& files){
DIR *dir = opendir(path.c_str());
if (!dir)
return false;
struct dirent *entry;
vector<string> ret;
while (entry = readdir(dir)){
string file(entry->d_name);
if (ext.size() < file.size() && file.substr(file.size()-ext.size()) == ext)
files.push_back(file);
}
closedir(dir);
return true;
}
void Launcher::LoadApps(const std::string& apps_path, const std::string& icons_path){
vector<string> files;
if (!FileList(apps_path, ".desktop", files))
LOG(FATAL) << "Cannot open directory: " << apps_path;
apps.clear();
for (int i=0; i<files.size(); ++i){
App app;
if (!LoadDesktopFile(apps_path + "/" + files[i], app))
LOG(FATAL) << "Cannot load desktop file: " << apps_path + "/" + files[i];
app.icon = icons_path + "/" + app.icon;
if (app.icon.size() < 4 || app.icon[app.icon.size()-4] !='.')
app.icon += ".png";
apps.push_back(app);
}
DrawApps();
}
void Launcher::DrawApps(){
int num_columns = (win.Width() - 2*margin_side) / app_width;
for (int i=0; i<apps.size(); ++i){
int x = margin_side + (i%num_columns) * app_width,
y = margin_top + (i/num_columns) * app_height;
int icon_width, icon_height;
win.AddImage(x, y, apps[i].icon, &icon_width, &icon_height, MyWindow::CENTER);
//win.AddText(x + icon_width/2, y + icon_height+3, apps[i].name, MyWindow::TOP_CENTER);
}
}
static void trim(string& s){
int trim = 0;
while (s[trim] == ' ') ++trim;
s = s.substr(trim);
trim = s.size() -1;
while (s[trim] == ' ') --trim;
s = s.substr(0, trim+1);
for (int i=0; i<s.size(); ++i)
s[i] = tolower(s[i]);
}
bool Launcher::LoadDesktopFile(const std::string& path, App& app){
ifstream in(path.c_str());
app.name = app.icon = app.exec = "";
while (in.good()){
char buf[256];
in.getline(buf, 256);
string line(buf);
if (line.find('=') == string::npos)
continue;
string var = line.substr(0, line.find('='));
string val = line.substr(line.find('=')+1);
trim(var);
trim(val);
if (var == "name")
app.name = val;
else if (var == "icon")
app.icon = val;
else if (var == "exec")
app.exec = val;
}
return !app.name.empty() && !app.icon.empty() && !app.exec.empty();
}
static bool ExecCommand(const string& s){
switch (fork()){
case -1: return false;
case 0: execlp("/bin/sh","/bin/sh","-c",s.c_str(),(char *)NULL);
return false;
default: break;
}
return true;
}
AppAction Launcher::OnMousePress(int x, int y){
x-=margin_side;
y-=margin_top;
x/=app_width;
y/=app_height;
int num_columns = (win.Width() - 2*margin_side) / app_width;
ExecCommand(apps[y*num_columns + x].exec);
return "";
}
void Launcher::OnRotate(Rotation rot){
win.Clear();
DrawApps();
}
void Launcher::SetAppWidth(int w){
app_width = w;
}
void Launcher::SetAppHeight(int h){
app_height = h;
}
void Launcher::SetMarginTop(int x){
margin_top = x;
}
void Launcher::SetMarginBottom(int x){
margin_bottom = x;
}
void Launcher::SetMarginSide(int x){
margin_side = x;
}
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